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on dealing with mixed derivatives in ADI

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Old   January 18, 2001, 23:17
Default on dealing with mixed derivatives in ADI
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yf yap
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dear sirs, i use the parabolized NV equations to solve a channel flow problem. after applying the coodinate transformation, i obtained one mixed derivative term in the difussion part of each equation. in order to use ADI to solved the transformed NV equations, how do i deal with the mixed derivatives? please advise. thanks.
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Old   January 19, 2001, 01:19
Default Re: on dealing with mixed derivatives in ADI
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yf yap
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typing mistake==> NV is NS(navier stokes)
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Old   January 19, 2001, 02:48
Default Re: on dealing with mixed derivatives in ADI
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Abhijit Tilak
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hi,

club the cross derivative terms with source terms. so u get (Ap+Sp)*Phi_p =Sigma A_i * Phi_i + Su where Su=dp/dx+cross_derivative terms. u can now implement adi by repetitively calling TDMA. routine hope this helps

abhijit tilak.
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